we are tyco integrated security. and we are sharper. >>> we begin with breaking nice, deborah f deborah farric is with me and she has information on what swrefrts are looking for. >> one photo that was making the rounds pretty early on in the day, that's of particular interest is of who gentlemen who were seen by the finish line, they're talking with one another and they're each carrying bags that were a little bit out of proportion. those are the kinds of things that investigators are looking at. nobody is calling them anything more than witnesses who they would like to speak to. and that's one of the thingser there are other groups of men they're looking at as well. people who are carrying something that maybe they shouldn't have been carrying thet of the incident. it did reach the higher levels today, people looking at this photo. >> and at this point, they just want to talk to them and find out what they knew, but to make it clear, two men at the finish line that had bags that were really stuffed. >> and the thin